Story perspectives

Bryan Johnson Diagnosed with Autoimmune Gastritis, Starts Research Team

7/6/2026

Summary

Bryan Johnson Gastritis

Bryan Johnson announced in May 2026 that he has autoimmune gastritis, saying his stomach “eats itself.”
Doctors ruled out colon cancer with a colonoscopy and confirmed gastritis via endoscopy and five biopsies showing lining atrophy.
Blood work showed high anti-parietal-cell antibodies and low ferritin, prompting a 1,000 mg Monoferric iron infusion that corrected the deficiency.
Johnson is forming a research team to monitor ferritin, B12 and gastrin while testing AI therapies.

Summary

Bryan Johnson Biohacking

Bryan Johnson sold Braintree to PayPal for $800 million in 2013, funding his anti-aging research.
He spends $2 million a year on Blueprint, covering supplements, MRIs, colonoscopies and plasma transfusions.
He posts his 1,977-calorie vegan diet, supplement schedule and biometric data on the “blueprint” website, drawing 1.5 million X followers, 2.6 million Instagram and 2.1 million YouTube.
2025 Netflix documentary “Don’t Die: The Man Who Wants to Live Forever” chronicled his biohacking with Kate Tolo.

Summary

Johnson Optimism

The Global Autoimmune Institute states there is no approved cure for autoimmune gastritis.
Researchers are testing therapies aimed at reducing stomach inflammation to prevent gastric atrophy and slow disease progression.
Standard care emphasizes symptom relief, anemia management, and lifestyle changes.
The institute notes that autoimmune gastritis is associated with other autoimmune diseases such as Hashimoto’s and type 1 diabetes.
Johnson’s optimism clashes with the institute’s view that cure efforts remain experimental.

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Bryan Johnson Gastritis

Bryan Johnson announced in May 2026 that he has autoimmune gastritis, saying his stomach “eats itself.”
Doctors ruled out colon cancer with a colonoscopy and confirmed gastritis via endoscopy and five biopsies showing lining atrophy.
Blood work showed high anti-parietal-cell antibodies and low ferritin, prompting a 1,000 mg Monoferric iron infusion that corrected the deficiency.
Johnson is forming a research team to monitor ferritin, B12 and gastrin while testing AI therapies.

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